Stress intensity factors and T-stresses by boundary integral equations: 3D statics

This paper presents the boundary integral equation method (BIEM) for stress intensity factors and elasticity T-stresses evaluation in 3D problems. Flat rectangular, elliptic, penny-shaped cracks rectangular crack on a cylindrical surface have been investigated. The hyper-singular integrals are treated with Taylor’s series expansion of kernel, Chebyshev polynomials second kind used to solve equations numerically. (SIFs) front obtained by coefficients polynomials. In order verify solutions BIEM, finite element (FEM) ABAQUS is conducted. efficiency convergence BIEM observed three examples. Comparisons made analytical factor handbook numerical using displacement discontinuity (DDM).